JPH0320708Y2 - - Google Patents
Info
- Publication number
- JPH0320708Y2 JPH0320708Y2 JP1984030105U JP3010584U JPH0320708Y2 JP H0320708 Y2 JPH0320708 Y2 JP H0320708Y2 JP 1984030105 U JP1984030105 U JP 1984030105U JP 3010584 U JP3010584 U JP 3010584U JP H0320708 Y2 JPH0320708 Y2 JP H0320708Y2
- Authority
- JP
- Japan
- Prior art keywords
- heat exchanger
- water
- hot water
- condenser
- side tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 116
- 238000004781 supercooling Methods 0.000 claims description 33
- 238000005192 partition Methods 0.000 claims description 10
- 238000004891 communication Methods 0.000 claims description 7
- 238000000638 solvent extraction Methods 0.000 claims 1
- 238000010257 thawing Methods 0.000 description 19
- 238000000034 method Methods 0.000 description 15
- 239000007788 liquid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000009834 vaporization Methods 0.000 description 3
- 230000008016 vaporization Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は空気を熱源とするヒートポンプ式給湯
機に関し、特にヒートポンプ式給湯機の蒸発器の
除霜に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a heat pump type water heater using air as a heat source, and particularly relates to defrosting of an evaporator of a heat pump type water heater.
従来、ヒートポンプ式給湯機の熱交換器とし
て、高温高圧のガス状の熱交換媒体を周囲の水に
凝縮熱を与えて液体にする凝縮器と、液体の熱交
換媒体を周囲の空気から蒸発熱を吸収して気体に
する蒸発器とがあるが、蒸発器は熱交換媒体が気
化熱を大気から吸収する際、特に冬季においては
その表面に霜が発生し、熱効率が低下する原因と
なつていた。
Conventionally, the heat exchangers for heat pump water heaters include a condenser that converts a high-temperature, high-pressure gaseous heat exchange medium into a liquid by giving condensation heat to surrounding water, and a condenser that converts a liquid heat exchange medium into a liquid by applying heat of condensation from the surrounding air. However, when the heat exchange medium absorbs the heat of vaporization from the atmosphere, frost forms on the surface of the evaporator, especially in winter, which causes a decrease in thermal efficiency. Ta.
そこで、従来、蒸発器の霜を取除く方法として
は次の様な方法がある。 Therefore, conventional methods for removing frost from an evaporator include the following methods.
先ず、第１の方法は四方弁を切換えることによ
つて蒸発器を凝縮器に、凝縮器を蒸発器に、夫々
熱交換器の働きを変えて除霜を行う、所謂ホツト
ガスデフロスト方法がある。 The first method is the so-called hot gas defrosting method, in which defrosting is performed by changing the function of the heat exchanger, changing the function of the evaporator to the condenser and the condenser to the evaporator, by switching the four-way valve. .
次に、第２の方法としては電気ヒーターで蒸発
器を加熱して除霜を行う方法がある。 Next, as a second method, there is a method of defrosting by heating the evaporator with an electric heater.
また、第３の方法として、運転を停止し霜が溶
けるまで待つ所謂オフサイクル方法がある。 Further, as a third method, there is a so-called off-cycle method in which the operation is stopped and waiting until the frost melts.
さらに、第４の方法として、デフロスト時蒸発
器となる補助熱交換器を設ける方法がある。 Furthermore, as a fourth method, there is a method of providing an auxiliary heat exchanger that serves as an evaporator during defrosting.
しかしながら、上述の第１の方法は、凝縮器を
加熱器として使用しているのをヒートポンプの回
路の流れを逆にして除霜を行うので、凝縮器が蒸
発器となつた際、凝縮器によつて加温されていた
水が冷却されて温度が低下し、熱効率に問題があ
つた。
However, in the first method described above, defrosting is performed by reversing the flow of the heat pump circuit instead of using the condenser as a heater. As a result, the water that had been heated was cooled and its temperature dropped, causing problems with thermal efficiency.
第２の方法は消費電力が大きくなる問題があつ
た。 The second method had the problem of high power consumption.
また、第３の方法は、自然に霜が溶けるのを待
つため、除霜に長時間を必要とする問題を有して
いた。 Moreover, the third method had a problem in that it required a long time for defrosting because it had to wait for the frost to melt naturally.
さらに、第４の方法の場合は、補助熱交換器を
設置するスペースを必要とし、小型化には不向き
であつた。 Furthermore, the fourth method requires a space for installing an auxiliary heat exchanger, and is not suitable for miniaturization.
それ故、本考案の課題は、上述の方法と異な
り、構造が簡単で、且つ短時間に除霜ができるヒ
ートポンプ式給湯機を提供することにある。 Therefore, an object of the present invention is to provide a heat pump water heater that has a simple structure and can defrost in a short time, unlike the above-mentioned methods.
本考案によれば、ヒートポンプの凝縮器を貯湯
槽の内部に配するとともに上記ヒートポンプの蒸
発器を上記貯湯槽の外部に配し、上記貯湯槽内で
温水を得るヒートポンプ式給湯機において、上記
蒸発器に対応して設けられた放水ノズルと、上記
凝縮器の熱交換媒体流出側に接続され、上記貯湯
槽内に配された過冷却用熱交換器と、上記貯湯槽
内に配され、上記貯湯槽内を上記凝縮器と上記過
冷却用熱交換器との間で仕切つて上記貯湯槽内を
凝縮器側槽と過冷却用熱交換器側槽とに区分する
断熱仕切り板と、上記凝縮器側槽と上記過冷却用
熱交換器側槽とを連通する連通管と、上記過冷却
用熱交換器側槽に接続され上記過冷却用熱交換器
側槽に水を供給する給水管と、上記凝縮器側槽に
接続された給湯管と、上記過冷却用熱交換器側槽
に接続され、上記過冷却用熱交換器により僅かに
加熱された水を上記放水ノズルに導く導水管とを
有することを特徴とするヒートポンプ式給湯機が
得られる。
According to the present invention, in a heat pump water heater that obtains hot water in the hot water storage tank, the heat pump condenser is arranged inside the hot water storage tank, and the evaporator of the heat pump is arranged outside the hot water storage tank. a supercooling heat exchanger connected to the heat exchange medium outflow side of the condenser and arranged in the hot water storage tank; an insulating partition plate that partitions the inside of the hot water storage tank between the condenser and the supercooling heat exchanger to divide the inside of the hot water storage tank into a condenser side tank and a supercooling heat exchanger side tank; a communication pipe that communicates the heat exchanger side tank for supercooling with the heat exchanger side tank for supercooling; and a water supply pipe that is connected to the heat exchanger side tank for supercooling and supplies water to the heat exchanger side tank for supercooling. , a water supply pipe connected to the condenser side tank; and a water conduit pipe connected to the supercooling heat exchanger side tank and guiding water slightly heated by the supercooling heat exchanger to the water discharge nozzle. A heat pump type water heater characterized by having the following is obtained.
本考案のヒートポンプ式給湯機の場合、水が給
水管を通して過冷却用熱交換器側槽に供給され
る。過冷却用熱交換器側槽に供給された水は、連
通管を通して凝縮器側槽にも供給される。凝縮器
側槽に供給された水は、凝縮器により加熱されて
湯となり、この湯は給湯管を通して貯湯槽外へ供
給される。
In the case of the heat pump type water heater of the present invention, water is supplied to the supercooling heat exchanger side tank through the water supply pipe. The water supplied to the supercooling heat exchanger side tank is also supplied to the condenser side tank through the communication pipe. The water supplied to the condenser side tank is heated by the condenser to become hot water, and this hot water is supplied to the outside of the hot water storage tank through a hot water supply pipe.
一方、過冷却用熱交換器側槽内の水は、過冷却
用熱交換器により加熱される。過冷却用熱交換器
は、凝縮器の熱交換媒体流出側に接続されてお
り、従つて、過冷却用熱交換器へは、凝縮器内で
熱交換した後の低温の熱交換媒体が流入するの
で、過冷却用熱交換器により加熱される水の温度
はそれ程の上昇しない。 On the other hand, the water in the subcooling heat exchanger side tank is heated by the subcooling heat exchanger. The supercooling heat exchanger is connected to the heat exchange medium outflow side of the condenser, and therefore, the low temperature heat exchange medium after heat exchange in the condenser flows into the supercooling heat exchanger. Therefore, the temperature of the water heated by the supercooling heat exchanger does not rise that much.
尚、凝縮器側槽と過冷却用熱交換器側槽とは、
断熱仕切り板により仕切られているので、凝縮器
側槽内の湯が、過冷却用熱交換器側槽内の水によ
り冷却されることは無い。 In addition, the condenser side tank and the subcooling heat exchanger side tank are:
Since it is partitioned by a heat insulating partition plate, the hot water in the condenser side tank is not cooled by the water in the supercooling heat exchanger side tank.
蒸発器に着霜した場合、過冷却用熱交換器側槽
内のあまり加熱されていない水が導水管を通して
放水ノズルに送られ、そして、この水は、放水ノ
ズルを通して蒸発器に放水される。これにより蒸
発器の除霜が短時間に効率よく行われる。 When frost forms on the evaporator, less heated water in the subcooling heat exchanger side tank is sent to the water discharge nozzle through the water pipe, and this water is discharged to the evaporator through the water discharge nozzle. This allows the evaporator to be defrosted quickly and efficiently.
この様に、本考案のヒートポンプ式給湯機の場
合、蒸発器の除霜にはあまり加熱されていない水
が使用されるので、ヒートポンプにより吸収され
た熱が不必要に使用されない。 In this way, in the case of the heat pump type water heater of the present invention, less heated water is used to defrost the evaporator, so the heat absorbed by the heat pump is not used unnecessarily.
また、本考案のヒートポンプ式給湯機は、従来
のものに比べ、放水ノズル、過冷却用熱交換器、
断熱仕切り板、連通管、及び導水管が付加されて
いるだけであり、構造が簡単である。 In addition, the heat pump type water heater of this invention has a water discharge nozzle, supercooling heat exchanger,
The structure is simple, with only an insulating partition plate, a communication pipe, and a water conduit pipe added.
第１図は本考案の第１の実施例を示している。 FIG. 1 shows a first embodiment of the invention.
第１図を参照して、ヒートポンプ１は、圧縮機
２と、圧縮機２の熱交換媒体吐出側に接続された
凝縮器３と、凝縮器３の熱交換媒体流出側に接続
された過冷却用熱交換器４と、過冷却用熱交換器
４の熱交換媒体流出側に接続された蒸発器５と、
蒸発器５と圧縮機２の間に接続されたアキユーム
レーター６と、蒸発器５に風を送り込む送風機７
とから成る。 Referring to FIG. 1, a heat pump 1 includes a compressor 2, a condenser 3 connected to the heat exchange medium discharge side of the compressor 2, and a subcooling unit connected to the heat exchange medium outlet side of the condenser 3. an evaporator 5 connected to the heat exchange medium outflow side of the subcooling heat exchanger 4;
An accumulator 6 connected between the evaporator 5 and the compressor 2, and a blower 7 that blows air into the evaporator 5.
It consists of
凝縮器３は、貯湯槽１０内の底部に配されてい
る。過冷却用熱交換器４は、貯湯槽１０内の上部
に配されている。 The condenser 3 is arranged at the bottom of the hot water tank 10. The supercooling heat exchanger 4 is arranged at the upper part of the hot water storage tank 10 .
貯湯槽１０内は、断熱仕切り板１１によつて凝
縮器３と過冷却用熱交換器４との間で仕切られて
いる。これにより貯湯槽１０内は、凝縮器側槽１
２と、過冷却用熱交換器側槽１３とに区分されて
いる。 The interior of the hot water storage tank 10 is partitioned between a condenser 3 and a subcooling heat exchanger 4 by a heat insulating partition plate 11. As a result, inside the hot water storage tank 10, the condenser side tank 1
2 and a subcooling heat exchanger side tank 13.
断熱仕切り板１１には、連通管１４が貫通させ
て取り付けられている。連通管１４は、凝縮器側
槽１２と過冷却用熱交換器側槽１３とを連通す
る。 A communication pipe 14 is attached to the heat insulating partition plate 11 so as to penetrate therethrough. The communication pipe 14 communicates the condenser side tank 12 and the supercooling heat exchanger side tank 13.
過冷却用熱交換器側槽１３には、給水管１５が
接続されている。この給水管１５により市水１６
が過冷却用熱交換器側槽１３へ供給される。給水
管１５の先端には、ある一定の水位になるとフロ
ート１７の浮力によつて市水１６の供給を自動的
に停止するボールタツプ１８が取り付けられてい
る。 A water supply pipe 15 is connected to the supercooling heat exchanger side tank 13 . City water 16 is supplied by this water supply pipe 15.
is supplied to the supercooling heat exchanger side tank 13. A ball tap 18 is attached to the tip of the water supply pipe 15, which automatically stops the supply of city water 16 by the buoyancy of the float 17 when the water level reaches a certain level.
凝縮器側槽１２の上部には、給湯管２０が接続
されている。この給湯管２０の途中には、給湯ポ
ンプ２１が備えられており、また、給湯管２０の
先端には、蛇口２２が取り付けられている。 A hot water supply pipe 20 is connected to the upper part of the condenser side tank 12. A hot water pump 21 is provided in the middle of the hot water supply pipe 20, and a faucet 22 is attached to the tip of the hot water supply pipe 20.
蒸発器５の上方には、放水ノズル２５が蒸発器
５に対向させて配置されている。 A water discharge nozzle 25 is arranged above the evaporator 5 so as to face the evaporator 5.
導水管２６は、その一端が過冷却用熱交換器側
槽１３に接続され、他端が放水ノズル２５に接続
されている。導水管２６には、除霜用ポンプ２７
及び逆止弁２８が備えられている
本実施例において、ヒートポンプ１の圧縮機２
より送出されたガス状の高温高圧の熱交換媒体
は、凝縮器３に送込まれて放熱しながら凝縮す
る。その際、水が加温され、後に蛇口２２により
湯として取出すことができる。凝縮器３を出た熱
交換媒体は、低温低圧の液体となり過冷却用熱交
換器４に入り、ここで過冷却用熱交換器側槽１３
内の水を僅かに加温すると共に過冷却される。過
冷却用熱交換器４から出た熱交換媒体は、蒸発器
５に入り、周囲の空気から気化熱を吸収して低温
高圧のガスとなつて圧縮機２に戻る。この様な熱
交換媒体の循環を繰返すことにより凝縮器側槽１
２内の水は温度が上昇し、湯として使用できる様
になる。 The water pipe 26 has one end connected to the subcooling heat exchanger side tank 13 and the other end connected to the water discharge nozzle 25. A defrosting pump 27 is installed in the water conduit 26.
and a check valve 28. In this embodiment, the compressor 2 of the heat pump 1
The gaseous high-temperature, high-pressure heat exchange medium sent out is sent to the condenser 3 and condensed while dissipating heat. At this time, the water is heated and can later be taken out as hot water using the faucet 22. The heat exchange medium that exits the condenser 3 becomes a low-temperature, low-pressure liquid and enters the supercooling heat exchanger 4, where it enters the supercooling heat exchanger side tank 13.
The water inside is slightly heated and supercooled. The heat exchange medium discharged from the subcooling heat exchanger 4 enters the evaporator 5, absorbs the heat of vaporization from the surrounding air, and returns to the compressor 2 as a low-temperature, high-pressure gas. By repeating such circulation of the heat exchange medium, the condenser side tank 1
The temperature of the water inside 2 rises and it becomes usable as hot water.
この間、蒸発器５の外側が気化熱によつて冷却
され、霜が発生した時は除霜用ポンプ２７が過冷
却用熱交換器側槽１３内のあまり加温されていな
い水を除霜用の水として取出し、放水ノズル２５
より蒸発器５に放水して霜を取除くことができ
る。 During this time, the outside of the evaporator 5 is cooled by the heat of vaporization, and when frost occurs, the defrosting pump 27 uses the not-so-heated water in the subcooling heat exchanger side tank 13 for defrosting. water from the water discharge nozzle 25.
The frost can be removed by spraying water into the evaporator 5.
尚、図中２９の矢印は、熱交換媒体の流れる方
向を示している。 Note that the arrow 29 in the figure indicates the direction in which the heat exchange medium flows.
第２図は除霜用の水の取出し方の異なる第２の
実施例で、給湯ポンプ２１の前後に三方弁３０，
３１を夫々設け、その三方弁３０，３１を切換え
ることによつて放水ノズル２５に除霜用の水を送
ることができるようにしている。即ち、本実施例
の場合、給湯管２０と導水管２６とが、三方弁３
０と三方弁３１の間で共有する部分を有してお
り、そして、第１の実施例の除霜用ポンプ２７の
働きを給湯ポンプ２１で行うものである。 FIG. 2 shows a second embodiment in which the method of taking out water for defrosting is different.
31 are provided respectively, and by switching the three-way valves 30 and 31, water for defrosting can be sent to the water discharge nozzle 25. That is, in the case of this embodiment, the hot water supply pipe 20 and the water supply pipe 26 are connected to the three-way valve 3.
0 and the three-way valve 31, and the hot water pump 21 performs the function of the defrosting pump 27 of the first embodiment.
第３図は第３の実施例で、除霜用ポンプ２７と
放水ノズル２５との間に三方弁３５を、給湯ポン
プ２１と蛇口２２との間にミツクスバルブ３６を
夫々設け、且つ三方弁３５とミツクスバルブ３６
とを接続したものである。 FIG. 3 shows a third embodiment, in which a three-way valve 35 is provided between the defrosting pump 27 and the water discharge nozzle 25, a mix valve 36 is provided between the hot water pump 21 and the faucet 22, and the three-way valve 35 and mix valve 36
This is a connection between
したがつて、三方弁３５を切換えることによつ
て、除霜用の水を給湯ポンプ２１からの湯とミツ
クスバルブ３６で混合し、適切な温度の湯を蛇口
２２から取出すことができる。 Therefore, by switching the three-way valve 35, the defrosting water can be mixed with the hot water from the hot water supply pump 21 at the mix valve 36, and hot water at an appropriate temperature can be taken out from the faucet 22.
以上の様に、本考案は、過冷却用熱交換器側槽
のあまり加熱されていない水を除霜用の水として
取出し、蒸発器にかけて蒸発器に付着した霜を取
除くものであるから、省エネルギー化でき、ま
た、凝縮器側槽内の湯温の低下を招くことなく除
霜でき、しかも除霜時間も短くてすむ。
As described above, in the present invention, water that is not heated very much from the subcooling heat exchanger side tank is taken out as water for defrosting, and is applied to the evaporator to remove the frost that has adhered to the evaporator. Energy can be saved, defrosting can be performed without causing a drop in the water temperature in the condenser side tank, and the defrosting time can be shortened.
また、本考案は、構成が簡単であり、コスト面
においても優れている。 Further, the present invention has a simple configuration and is excellent in terms of cost.
更に、本考案は、貯湯槽を断熱仕切り板により
仕切り、そして貯湯槽内を凝縮器側槽と過冷却用
熱交換器側槽とに区分してあるので、凝縮器側槽
内の湯が過冷却用熱交換器側槽内の水と直接混じ
ることがなく、また、給水による出湯温度変動を
押さえることもできる。 Furthermore, in the present invention, the hot water storage tank is partitioned by heat insulating partition plates, and the hot water storage tank is divided into a condenser side tank and a supercooling heat exchanger side tank, so that the hot water in the condenser side tank is not overheated. It does not directly mix with the water in the side tank of the cooling heat exchanger, and it is also possible to suppress fluctuations in outlet temperature due to water supply.
第１図は本考案の第１の実施例によるヒートポ
ンプ式給湯機の構成略図、第２図は本考案の第２
の実施例によるヒートポンプ式給湯機の構成略
図、第３図は第３の実施例によるヒートポンプ式
給湯機の構成略図である。
１……ヒートポンプ、２……圧縮機、３……凝
縮器、４……過冷却用熱交換器、５……蒸発器、
６……アキユームレーター、７……送風機、１０
……貯湯槽、１１……断熱仕切り板、１２……凝
縮器側槽、１３……過冷却用熱交換器側槽、１４
……連通管、１５……給水管、１６……市水、１
７……フロート、１８……ボールタツプ、２０…
…給湯管、２１……給湯ポンプ、２２……蛇口、
２５……放水ノズル、２６……導水管、２７……
除霜用ポンプ、２８……逆止弁、２９……熱交換
媒体、３０……三方弁、３１……三方弁、３５…
…三方弁、３６……ミツクスバルブ。
Fig. 1 is a schematic diagram of the configuration of a heat pump water heater according to the first embodiment of the present invention, and Fig. 2 is a schematic diagram of the configuration of a heat pump water heater according to the first embodiment of the present invention.
FIG. 3 is a schematic diagram of the configuration of a heat pump type water heater according to the third embodiment. 1...Heat pump, 2...Compressor, 3...Condenser, 4...Supercooling heat exchanger, 5...Evaporator,
6...Accumulator, 7...Blower, 10
... Hot water storage tank, 11 ... Heat insulation partition plate, 12 ... Condenser side tank, 13 ... Heat exchanger side tank for supercooling, 14
...Communication pipe, 15...Water supply pipe, 16...City water, 1
7...Float, 18...Ball tap, 20...
...Hot water pipe, 21...Hot water pump, 22...Faucet,
25...Water nozzle, 26...Water pipe, 27...
Defrosting pump, 28... Check valve, 29... Heat exchange medium, 30... Three-way valve, 31... Three-way valve, 35...
...Three-way valve, 36...Mitsu valve.
Claims (1)
とともに上記ヒートポンプの蒸発器を上記貯湯槽
の外部に配し、上記貯湯槽内で温水を得るヒート
ポンプ式給湯機において、上記蒸発器に対応して
設けられた放水ノズルと、上記凝縮器の熱交換媒
体流出側に接続され、上記貯湯槽内に配された過
冷却用熱交換器と、上記貯湯槽内に配され、上記
貯湯槽内を上記凝縮器と上記過冷却用熱交換器と
の間で仕切つて上記貯湯槽内を凝縮器側槽と過冷
却用熱交換器側槽とに区分する断熱仕切り板と、
上記凝縮器側槽と上記過冷却用熱交換器側槽とを
連通する連通管と、上記過冷却用熱交換器側槽に
接続され上記過冷却用熱交換器側槽に水を供給す
る給水管と、上記凝縮器側槽に接続された給湯管
と、上記過冷却用熱交換器側槽に接続され、上記
過冷却用熱交換器により僅かに加熱された水を上
記放水ノズルに導く導水管とを有することを特徴
とするヒートポンプ式給湯機。 A heat pump type water heater in which a condenser of a heat pump is arranged inside a hot water storage tank and an evaporator of the heat pump is arranged outside the hot water storage tank, and hot water is obtained in the hot water storage tank. a supercooling heat exchanger connected to the heat exchange medium outflow side of the condenser and disposed within the hot water storage tank; an insulating partition plate that partitions the inside of the hot water storage tank into a condenser side tank and a supercooling heat exchanger side tank by partitioning the inside of the hot water storage tank between the container and the supercooling heat exchanger;
A communication pipe that communicates the condenser side tank and the supercooling heat exchanger side tank, and a water supply that is connected to the supercooling heat exchanger side tank and supplies water to the supercooling heat exchanger side tank. a water supply pipe connected to the condenser side tank, and a conduit connected to the supercooling heat exchanger side tank to lead water slightly heated by the supercooling heat exchanger to the water discharge nozzle. A heat pump type water heater characterized by having a water pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3010584U JPS60144059U (en) | 1984-03-03 | 1984-03-03 | Heat pump water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3010584U JPS60144059U (en) | 1984-03-03 | 1984-03-03 | Heat pump water heater |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS60144059U JPS60144059U (en) | 1985-09-25 |
| JPH0320708Y2 true JPH0320708Y2 (en) | 1991-05-02 |
Family
ID=30529499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3010584U Granted JPS60144059U (en) | 1984-03-03 | 1984-03-03 | Heat pump water heater |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60144059U (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100796283B1 (en) | 2007-09-28 | 2008-01-21 | 주식회사삼원기연 | Energy saving style refrigeration equipment that use waste heat of discharge gas |
| JP5314316B2 (en) * | 2008-03-31 | 2013-10-16 | パナソニック株式会社 | Hot water storage hot water supply system |
| JP5534789B2 (en) * | 2009-11-30 | 2014-07-02 | 三菱電機株式会社 | Cooling system |
| KR100981447B1 (en) | 2010-04-09 | 2010-09-13 | 김덕선 | Refrigeration warehouse improved defrosting function |
| JP6183589B2 (en) * | 2013-05-23 | 2017-08-23 | 株式会社ノーリツ | Heat pump water heater |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4718624U (en) * | 1971-04-06 | 1972-11-01 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58103645U (en) * | 1982-01-06 | 1983-07-14 | 株式会社日立製作所 | heat pump water heater |
-
1984
- 1984-03-03 JP JP3010584U patent/JPS60144059U/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS4718624U (en) * | 1971-04-06 | 1972-11-01 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS60144059U (en) | 1985-09-25 |
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